Stereoscope.



J. J. MURPHY.

STEREOSOOPE.

APPLICATION FILED NOV. 18, 1912.

Patented J1me 30,1914.

COLUMBIA PLANOGRAPH CO.,WASHINGTON, D1 :4

or focusing bar,

UNITED STATES PATENT orrro JOHN J. MURPHY, or TOLEDO, QHIO, ASSIGNOR, BYMESNE ASSIGNMENTS, TO THE AMERICAN oo'RrE-ScoPE COMPANY, or TOLEDO,OHIO.

STEREOSGOPE.

Specification of Letters Patent.

Patented June 30, 1914-.

Application filed November 18, 1912. Serial No. 731,915.

a new and useful Stereoscope, of which the following is a specification.

This invention relates to features of a support and the adjustableextension therefor.

This invention has utility when embodied as a support and position orrange finder if used in connection with stereoscopes.

Referring to the drawing: Figure 1 is a fragmentary perspective view ofan embodiment of the invention in connection with a stereoscope; Fig. 2is a side elevation of the device as embodied in Fig. 1; Fig. 3 is aside elevation of the device collapsed; and Fig. at is a section on theline IV-IV, Fig. 3, looking in the direction of the arrow.

The stereoscope is shown as provided with the hood 1 having a pair oflenses 2 and centrally between the lenses and projecting therefrom apair of inclined partitions 3 mounted upon the hood or lens carryingframe. Between the partition or divider members 3 is disposed the socket4 for mounting the hood, lens and divider section of the stereoscopeupon th supporting stem 5 which has the extended seat 6 and ledges 7 forrigidly positioning the support rela tivcly to the stereoscope.Extending upward through the support and fianging outward are the claws8 between which and abutting the support are the projections 9 of themember 10 having the pivot bearing 11 for mounting the foldable handle12 which has in one side thereof the slot 13. The support has a pair ofsides 14 upwardly and inwardly inclined to form a channel 10 in thebottom of which is the slot 15 for the member 16 extending thcrebelow.

Rigid with the member 16 is the adjustable partition or divider 17having the pair of flare wings 18 at the forward end thereof. Thisadjustable partition or divider of the range finder has the pivoted arm19 foldable thereagainst. This arm 19 has a view abutting portionreadily adapting the device for use as a position and range finder themember 19 being disposed to abut the line of division between thestereoscope views 20, which views may be incorporated in a book 21 inconnection with descriptive matter as desired. The 5 member 16 of thereciprocable section of the range finder is provided with fingerengaging portions 22 handle 12 that the operator or reader may supportthe stereoscope by the handle 12 and simultaneously reciprocate therange finder 17, 19 to the desired focus, while the other hand is freeto hold the book or turn pages therein. The spring 24 co-acting betweenthe bottom of the members 14 and the top of the member bearing thefinger engaging portions 22 introduces such frictional resistance toreciprocation of the secondary or adjustable divider 17 that it readilystays in any adjusted range.

This device has special application in increasing the range ofusefulness of stereoscopes in that views for third dimensional showingmay be readily incorporated in catalogues as well as matters of currentliterature and with a device of this disclosure at hand there is aconvenient and ready means for enlightening the reader as to devices asfully as though seen in the three dimension condition; The manipulationis readily accomplished by one hand not only as to positioning the scopebut as to finding the range. Furthermore there is introduced a positiveguard against interference by cross view between the separate showingsof the illustration by means of the adjustable divider or partition 17.This may be desirably spaced a short distance back from the views so asnot to shade either view. This auxiliary divider contributesconsiderable ease to the use of this device to supplement generalreading, for in the course of the read ing the stereoscope may be takenup, manipulated with one hand, and the view readily fixed with no chancefor interference. Further, the device is of such form as to compactlycollapse and pack away for handling in connection with the particularbooks, should such packing be desired.

The stereoscope support and finder herein is not only adapted for use inconnection with regular stereoscopic view cards, but for observing anystereoscopic views, whether in a roll, in a book, say speciallydesigned, or views scattered anywhere through general volumes, pricelists, or with reading matter, as no special construction is necessary.

WVhat is claimed and it is desired to secure by Letters Patent is:

1. A one hand stereoscope holder and focus finder embodying thecombination with a in such proximity to the and an actuating connectionfor JOHN J. MURPHY.

signature Witnesses GEO. E. KIRK, C. H. RAUOH.

Gopiea of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

